Footwear sole



FIG. 1 is a bottom view of a footwear sole showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The broken lines shown in the figures are provided for the purpose of illustrating environment and portions of the footwear sole that form no part of the claimed design. 

CLAIM The ornamental design for a footwear sole, as shown and described. 